Carbon and Nitrogen Isotopic Anomalies in an Anhydrous Interplanetary Dust Particle

Details Carbon and Nitrogen Isotopic Anomalies in an Anhydrous Interplanetary Dust Particle Carbon and Nitrogen Isotopic Anomalies in an Anhydrous Interplanetary Dust Particle

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sci...303.1355f&link_type=abstract

Science, Volume 303, Issue 5662, pp. 1355-1358 (2004).

Computer Science

47

Scientific paper

Because hydrogen and nitrogen isotopic anomalies in interplanetary dust particles have been associated with carbonaceous material, the lack of similar anomalies in carbon has been a major conundrum. We report here the presence of a 13C depletion associated with a 15N enrichment in an anhydrous interplanetary dust particle. Our observations suggest that the anomalies are carried by heteroatomic organic compounds. Theoretical models indicate that low- temperature formation of organic compounds in cold interstellar molecular clouds can produce carbon and nitrogen fractionations, but it remains to be seen whether the specific effects observed here can be reproduced.

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